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在高强度的纤维增强材料中,除了玻璃纤维外(和塑料相结合),还用碳纤维和铝纤维。但对于制造在高温下也能使用的复合材料,迄今还缺乏合适的材料。铝纤维的强度不够高,碳纤维在高温下很容易发生反应。而耐高温材料碳化硅,迄今只有“晶须”(单晶纤维),用它做复合材料嫌短,此外价格也太贵。《自然》杂志(260卷11页)报导,日本东北大学的化学家野茨真成功地制成很长的高强度碳化硅纤维。他以制造碳纤维所用的方法为出发点—这种方法是在高温下使一根塑料纤维(聚丙烯腈)热解而转化成纯的碳纤维的。在制造碳化硅纤维时,则用二甲基氯硅烷作原料,通过和锂反应使它转变成中
In high-strength fiber-reinforced materials, in addition to glass fibers (combined with plastic), carbon fibers and aluminum fibers are also used. However, for the manufacture of composites that can also be used at elevated temperatures, to date there is a lack of suitable materials. Aluminum fiber strength is not high enough, carbon fiber is very easy to react at high temperatures. The high temperature material silicon carbide, so far only “whisker” (single crystal fiber), use it to make the composite material is too short, in addition the price is too expensive. Nature (260 pages 11 pages) reported that Hsinchu, a chemist at Northeastern University in Japan, successfully made very long, high-strength silicon carbide fibers. He started with the method used to make carbon fiber - a method of pyrolyzing a plastic fiber (polyacrylonitrile) into pure carbon fiber at high temperatures. In the manufacture of silicon carbide fibers, dimethylchlorosilane is used as a starting material, which is converted into lithium by reacting with lithium